some detective work today on the mysteries of the grammy awards last night. Those guys in the helmets, that hat? And beyonce, with jay Z. ABC's nick watt takes us behind all of the buzz. &#9834; Reporter: Beyonce and jay Z, no questions asked, brought the house down. Beyond that, there's a lot of postgrammy head scratching. "Get lucky" daft punk. Reporter: Daft punk never leave home without their helmets. What do they actually look like? In the flesh, 20 years ago. The helmets are a slice of pop theatrics and they told "Rolling stone," we're not models. It would not be enjoyable for humanity to see our features. Come on. They're hardly hunchbacks of notre dame. Also, what's with pharell's rocky and bullwinkle chapeau that launched a thousand memes and tweets? Arby's claimed it as their own and pharell shot back, y'all tryna start a roast beef? And the hat? It's a Vivienne Westwood. Seen on Malcolm Mclaren circa 1982. Who chose the 33-straight and gay couples married to the sound of "Same love"? A casting agent of course. This is L.A. Among them, a pair of whose flash mob proposal in a home Depot, already has gone viral. Queen latifah, with the requisite legal permission, officiated. And Katy Perry caught the bouquet. Nick watt, ABC news, los Angeles.

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